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HS Code |
565546 |
| Name | Eosin B |
| Chemical Formula | C20H8Br4N2O5 |
| Cas Number | 548-24-3 |
| Molecular Weight | 691.9 g/mol |
| Appearance | Reddish-brown powder |
| Solubility | Soluble in water and alcohol |
| Melting Point | 275 °C (dec.) |
| Synonyms | Ethyl Eosin, Acid Red 91 |
| Usage | Biological stain, dyeing textiles |
| Storage Conditions | Store at room temperature, protected from light |
| Absorption Maximum | 517 nm (in water) |
As an accredited Eosin B factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Eosin B is supplied in a 25g amber glass bottle with a secure cap, labeled with hazard warnings and handling instructions. |
| Shipping | Eosin B is shipped in tightly sealed containers to prevent contamination and moisture absorption. It should be transported according to chemical safety regulations, protected from light, heat, and incompatible substances. Proper labeling and documentation are required, and personal protective equipment is recommended during handling to ensure safe delivery and compliance with regulatory standards. |
| Storage | Eosin B should be stored in a cool, dry, well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizers. Keep the container tightly closed and properly labeled. Avoid moisture and store at room temperature, ideally between 15-25°C (59-77°F). Ensure storage areas are secure and comply with local chemical safety regulations to prevent accidental exposure or contamination. |
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Purity 98%: Eosin B with 98% purity is used in histological staining of biological tissues, where it ensures clear and consistent cytoplasmic contrast. Molecular Weight 691.85 g/mol: Eosin B with a molecular weight of 691.85 g/mol is used in microscopy sample preparation, where it enables precise differentiation of cell components. Particle Size <10 µm: Eosin B with particle size less than 10 µm is used in pharmaceutical formulations, where it provides efficient dispersion and uniform coloration. Aqueous Solubility 10 g/L: Eosin B with an aqueous solubility of 10 g/L is used in clinical diagnostic dyes, where it allows rapid preparation of staining solutions. Melting Point 260°C: Eosin B with a melting point of 260°C is used in temperature-sensitive bioprocessing, where it maintains structural integrity during thermal procedures. Stability Temperature Up to 80°C: Eosin B stable up to 80°C is used in automated staining platforms, where it supports reliable operation under elevated processing temperatures. Light Stability High: Eosin B with high light stability is used in long-term imaging assays, where it prevents photobleaching and preserves visualization quality. |
Competitive Eosin B prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
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